Method of preparing polymeric adhesive compositions utilizing the mechanism of interaction between the polymer components

摘要

A method of selecting components for use in water-absorbing pressure-sensitive adhesive compositions is provided. The method involves selecting a film-forming polymer, a ladder-like non-covalent crosslinker that is capable of forming a ladder-like interpolymer complex with the film-forming polymer selected, and selecting a carcass-like non-covalent crosslinker that is capable of forming a carcass-like complex with at least one of the film-forming polymer selected or the ladder-like non-covalent crosslinker selected. The adhesive hydrogels provide high adhesion in a swollen state and bridge the gap between conventional pressure sensitive adhesives and bioadhesives. Methods for preparing and using the resulting compositions are also disclosed.

主权项

1. A method of preparing a bioadhesive, tooth whitening composition comprising:
(i) blending a mixture comprising a (1:1) methyacrylic acid-ethyl acrylate copolymer, polyvinylpyrrolidone, poly(ethylene glycol) having a molecular weight from 200-600, and a tooth whitening agent, to thereby form a blended polymer-tooth whitening agent composition, wherein the amount of polyvinylpyrrolidone on a weight basis is greater than the amount of the methyacrylic acid-ethyl acrylate copolymer or the amount of the poly(ethylene)glycol, (ii). melting the blended polymer-tooth whitening agent composition from (i) to form a melted composition, and (iii). extruding the melted composition from (ii) to form an extruded tooth whitening composition, the extruded tooth whitening composition comprising from about 20-95 wt % polyvinylpyrrolidone, from about 0.5-40 wt % of methyacrylic acid-ethyl acrylate copolymer, and from about 0.5-60 wt % poly(ethylene glycol).